[Goggen]

Spoiler for Rikka:

I feel bad for Rikka now. Not only did her father die and her mother apparently abandon her, but on top of that her grandfather doesn't accept her. No wonder she says the "Priestess" and Dekomori are the only ones to acknowledge her existance. (EDIT: And, oh yeah, returning to her childhood home to find it gone is icing on the cake of course.) Also, I think ultimatemegax is spot on about the "I envy you".